47
Smoke Detectors
Smoke detectors are available as factory-installed options
on 50HC models. Smoke detectors may be specified for Sup-
ply Air only or for Return Air without or with economizer or
in combination of Supply Air and Return Air. All components
necessary for operation are factory-provided and mounted.
The unit is factory-configured for immediate smoke detector
shutdown operation; additional wiring or modifications to
unit terminal board may be necessary to complete the unit
and smoke detector configuration to meet project require-
ments.
Units equipped with factory-optional Return Air smoke
detectors require a relocation of the sensor module at unit in-
stallation. See Fig. 56 for the as-shipped location.
COMPLETING INSTALLATION OF RETURN AIR
SMOKE SENSOR
1. Unscrew the two screws holding the Return Air Smoke
Detector assembly. See Fig. 57, Step 1. Save the screws.
2. Turn the assembly 90 degrees and then rotate end to end.
Make sure that the elbow fitting is pointing down. See
Fig. 57, Step 2.
3. Screw the sensor and detector plate into its operating
position using screws from Step 1. See Fig. 57, Step 3.
4. Connect the flexible tube on the sampling inlet to the
sampling tube on the basepan.
Fig. 56 — Return Air Smoke Detector, Shipping
Position
ADDITIONAL APPLICATION DATA
Refer to the Application Data sheet titled
Factory Installed
Smoke Detectors for Small and Medium Rooftop Units 2 to 25
Tons
for discussions on additional control features of these
smoke detectors including multiple unit coordination.
Fig. 57 — Completing Installation of Return Air Smoke Sensor
RETURN AIR
S
MOKE DETECTOR
(A
S
S
HIPPED)
S
TEP 1
S
TEP 2
S
TEP
3
Summary of Contents for WeatherMaster 50HC*A07 Series
Page 4: ...4 Fig 2 Unit Dimensional Drawing Sizes 07 09 ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing Sizes 07 09 cont ...
Page 6: ...6 Fig 3 Unit Dimensional Drawing Sizes 11 and 12 ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing Sizes 11 and 12 cont ...
Page 25: ...25 Fig 42 Electro Mechanical Control Wiring Diagram ...
Page 26: ...26 Fig 43 Electro Mechanical Control Wiring Diagram with Humidi MiZer System ...
Page 27: ...27 Fig 44 Typical ComfortLink Control Wiring Diagram 50HC 08 09 shown ...
Page 29: ...29 Fig 46 Typical PremierLink Control Wiring Diagram ...
Page 30: ...30 Fig 47 Typical PremierLink Control Wiring Diagram with Humidi MiZer System Option ...
Page 31: ...31 Fig 48 Typical RTU Open Controller Wiring Diagram ...
Page 32: ...32 Fig 49 Typical RTU Open Controller Wiring Diagram with Humidi MiZer System Option ...
